It took about an hour and a half total from start to finish, I could probably do it in about 20 mins now that I know whats needed. This went on my 08 cls550. We just had the snow clear up here in Denver bout 5 days ago, can't say that for you guys over on the east coast but I like the overall look now. It sits lower then in the pics considering I pulled it right out after doing it and didn't drive around more for it to settle. The pics in the garage was when I was working on it at the stock height and the pics in the driveway is finished with a 2in drop. I love the fact that there is a remote control where i can raise it like when I go to the car wash etc from right inside the car.